With a constant diameter impeller of a centrifugal pump

1.	With a constant diameter impeller of a centrifugal pump
A.	its capacity varies directly as the square of speed.
B.	head varies as the square of speed.
C.	horsepower input varies as the square of speed.
D.	head varies as the speed.
Answer» C. horsepower input varies as the square of speed.

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With a constant diameter impeller of a centrifugal pump

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